Serverless React Apps

Engineer @ Red Hat

Agenda

• Serverless?
• REST vs. GraphQL
• Single Page Apps
• Build a thing

No server is easier to manage than no server

IaaS

• Hardware handled
• BYO network architecture
• BYO applications
• BYO deploy tools
• BYO code

PaaS

• Heroku, OpenShift
• Ops handled
• Deploys handled
• Scaling sometimes handled
• BYO code

Serverless

• Networking & Ops handled
• Framework handled
• Scaling handled
• BYO code

Lambda

• Runtime as a Service
• Parallelism builtin
• Loads of event sources

Cheap

More pricing

• $0.000000834 per 100ms for 512MB env
• First million are free

Protocols

REST

• GET /api/user/123
• Request per resource
• Queries as "query=foo"

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RESTful Problems

• Many round-trips
• Adding more fields
• Merging data to a view
• Mobile networks

GraphQL

• Huge single query
• Request only what you need
• Single round trip

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API Gateway

• HTTP to Lambda events
• Request/reply mapping
• Staging environments

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Stop, Demo Time

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